UV-distance Selection Expression

token UNIT     of type String
token FNUMBER of type Double
token COLON  
token COMMA
token PERCENT

type Double fnumwithunits
type TEN uvwdiststatement
type TEN uvwdistexprlist
type TEN uvwdistexpr

uvwdiststatement:uvwdistexprlist

uvwdistexprlist: uvwdistexpr 
               | uvwdistexprlist COMMA uvwdistexpr 

fnumwithunits: FNUMBER
             | FNUMBER UNIT

uvwdistexpr: fnumwithunits
           | FNUMBER TILDA fnumwithunits
           | LT fnumwithunits
           | GT fnumwithunits
           | fnumwithunits COLON FNUMBER PERCENT